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Variations of stomatal density and carbon isotope values of Picea crassifolia at different altitudes in the Qilian Mountains[J] Wei-ya Qiang;Xun-ling Wang;Tuo Chen;Hu-yuan Feng;Li-zhe An;Yuan-qin He;Gang Wang Trees. Structure and Function 2003,
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Water availability and carbon isotope discrimination in conifers[J] Charles R. Warren;John F. McGrath;Mark A. Adams Oecologia 2001,
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Effects of land use on <Superscript>15</Superscript>N natural abundance of soils in Ethiopian highlands[J] Zewdu Eshetu;Peter Högberg Plant and Soil 2000,
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Foliar carbon isotope discrimination in Larix species and sympatric evergreen conifers: a global comparison[J] Brian D. Kloeppel;Stith T. Gower;Isabel W. Treichel;Slava Kharuk Oecologia 1998,
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Carbon isotope composition of boreal plants: functional grouping of life forms[J] J. R. Brooks;Lawrence B. Flanagan;N. Buchmann;James R. Ehleringer Oecologia 1997,
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Leaf carbon isotope discrimination and nitrogen content for riparian trees along elevational transects[J] J. P. Sparks;J. R. Ehleringer Oecologia 1997,